Synergistic aid for improving tobacco axillary bud inhibition rate of bud inhibitor as well as preparation method and application of synergistic aid

Abstract

The invention discloses a synergistic auxiliary agent for improving the tobacco axillary bud inhibition rate of a bud inhibitor and a preparation method and application thereof, the synergistic auxiliary agent is prepared by compounding plant polyphenol, potassium fulvate and an organic silicon defoamer according to the mass ratio of (14-16): (8-10): 1, and the synergistic auxiliary agent can be cooperatively used with a C12-C14 mixed alcohol bud inhibitor. By enhancing the wetting selectivity of the liquid medicine on tobacco axillary bud villus, the bud inhibition rate is remarkably increased, and the risk of phytotoxicity is reduced. Field tests show that after compounding, the bud inhibition rate reaches 97% or above, the fresh and heavy bud inhibition effect reaches 96%, and the cost is reduced by 30%-40% compared with that of a traditional chemical agent. The method has the advantages of environmental protection, safety and economy, and is suitable for organic tobacco production.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural science and technology, and particularly relates to a synergistic adjuvant for improving the bud inhibition rate of tobacco axillary buds by a bud inhibitor, its preparation method and application. Background Art

[0002] In tobacco leaf production, timely application of a bud inhibitor after topping can break apical dominance, prevent the growth of axillary buds, help nutrients accumulate in the leaves, and thus improve the quality and yield of tobacco leaves.

[0003] Currently, dinitrotoluidine chemical bud inhibitors such as flumetralin, butralin, and pendimethalin are commonly used in cultivation management in tobacco leaf production areas. The research in the 4th issue of "Chinese Tobacco Science" in 2021 confirmed that the effective period of this type of compound can reach 21 - 28 days (DOI: 10.13496 / j.issn.1007 - 5119.2021.04.013). Improper use of chemical bud inhibitors can cause leaf phytotoxicity, affect the quality of tobacco leaves, and may also pollute the soil and water sources, endangering the ecological environment. Long - term exposure to harmful substances in these chemical agents may affect human health. The research in the core environmental science journal "Ecotoxicology" in 2023 confirmed that the half - life of pendimethalin in the soil reaches 60 - 90 days (PMID: 36725739).

[0004] Therefore, the adoption of a new type of tobacco bud inhibitor with economy, safety, and a long effective period is of great significance for increasing the income of tobacco farmers, producing high - quality tobacco leaves, and improving the yield of organic tobacco leaves. Summary of the Invention

[0005] The purpose of the present invention is to provide a synergistic adjuvant for improving the bud inhibition rate of tobacco axillary buds by a bud inhibitor, its preparation method and application. This synergistic adjuvant can significantly enhance the inhibitory ability of the bud inhibitor on tobacco axillary buds.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: In the first aspect of the present invention, a synergistic adjuvant for improving the bud inhibition rate of tobacco axillary buds by a bud inhibitor is provided. The synergistic adjuvant for improving the bud inhibition rate of tobacco axillary buds by a bud inhibitor, by weight, comprises the following components: Plant polyphenols: 14 - 16 parts; Potassium fulvate: 8 - 10 parts; Organosilicon defoamer: 1 part.

[0007] In the above technical solution, the plant polyphenols include green tea plant polyphenols or black tea plant polyphenols.

[0008] In the embodiment of the present invention, the specific extraction source of the plant polyphenols is green tea.

[0009] As a specific embodiment, the green tea plant polyphenols in the embodiments of the present invention are purchased from Xi'an Virgin Biotechnology Co., Ltd., with the product number virgin342. It is confirmed by HPLC detection that the content of epigallocatechin gallate (EGCG) is ≥82.3%, the total catechin substances are ≥90%, and the total polyphenol content is ≥96% (calculated as gallic acid equivalent).

[0010] Further, the bud inhibitor is a C12-C14 mixed fatty alcohol solvent.

[0011] Further, the mass ratio of the bud inhibitor to the synergistic auxiliary agent is (73-77):(23-27).

[0012] The obtained synergistic auxiliary agent by compounding is a milky white liquid, which is easily soluble in water, extremely stable under alkaline conditions, and decomposes when encountering acid.

[0013] In the second aspect of the present invention, a preparation method of the synergistic auxiliary agent for improving the bud inhibition rate of tobacco axillary buds by the bud inhibitor is provided. The method specifically includes:[[]] Mix the silicone defoamer, potassium fulvate and plant polyphenols in sequence according to the above mass ratio, and process them with a high-shear dispersing machine. Set the rotation speed to 3000 rpm (corresponding shear rate ≥10 4 s -1 ), and continue for 15 minutes. The water bath jacket maintains the system temperature at 25 °C (to avoid pyrolysis of potassium fulvate and oxidation of polyphenols).

[0014] In the third aspect of the present invention, an application of the synergistic auxiliary agent for improving the bud inhibition rate of tobacco axillary buds by the bud inhibitor in improving the bud inhibition rate of tobacco axillary buds by the bud inhibitor is provided.

[0015] After adding the synergistic auxiliary agent, the retention amount of the liquid medicine on the axillary bud fluff increases by 58% (the control group is 22%), and the bud inhibition rate after 15 days increases to 98%.

[0016] Further, the synergistic auxiliary agent realizes directional bud inhibition by enhancing the wettability of the axillary bud fluff, thereby improving the bud inhibition rate of the tobacco axillary buds by the bud inhibitor.

[0017] In the fourth aspect of the present invention, a method for improving the bud inhibition rate of tobacco axillary buds by the bud inhibitor is provided. The method includes:[[]] Mix the synergistic auxiliary agent for improving the bud inhibition rate of tobacco axillary buds by the bud inhibitor with the bud inhibitor, and stir and dissolve to obtain an emulsion; Dilute the emulsion and apply it to the tobacco axillary bud part by the cup pouring method.

[0018] Further, the application time is: within 24 hours after topping, 20-30 mL of the liquid medicine is irrigated per plant.

[0019] Further, the dilution multiple is 25 - 30 times, preferably 25 times.

[0020] II. Application After the synergistic adjuvant is prepared, 75 parts by weight of C12 - C14 mixed fatty alcohols are added.

[0021] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages: A synergistic adjuvant for improving the bud - inhibiting rate of a bud - inhibitor on tobacco axillary buds, its preparation method and application provided by the present invention, by compounding phyto - polyphenols, potassium fulvate and an organosilicon defoamer in proportion, and adding them to a C12 - C14 mixed fatty alcohol bud - inhibitor during use, improve the low volatility of C12 - C14 natural mixed fatty alcohols and their wettability at the axillary bud villi, extend the effective period, and thus significantly enhance the bud - inhibiting effect. It has the following technical effects: (1) Wettability improvement: The retention rate of axillary bud villi is increased by 40% - 60%; (2) Bud - inhibiting rate: It reaches 98% - 100% 15 days after application of the drug, and remains above 95% after 30 days; (3) Safety: There is no leaf phytotoxicity, meeting the organic tobacco leaf production standard; it does not contain pesticide ingredients, contributing to the safety of tobacco leaves and products; C12 - C14 mixed fatty alcohols are prepared from waste oils and fats. By heating and mixing the main alcohols and auxiliary alcohols respectively to make the final product, the raw material source is sufficient, the production process is simple, the energy consumption is low, and there is no discharge of waste water, waste residue, waste gas and dust, with strong environmental protection.

[0022] (4) Economy: The application cost per mu of the C12 - C14 mixed fatty alcohol bud - inhibitor is 6 - 8 yuan, while the costs of common bud - inhibitors such as 35% flumetralin EC and 33% butralin EC are 10 - 12 yuan. The C12 - C14 mixed fatty alcohol bud - inhibitor reduces the production cost of tobacco leaves by 30% - 40% compared with traditional agents by reducing the number of applications. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following - described drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a physical diagram of a 25 - fold dilution of the C12 - C14 mixed fatty alcohol bud - inhibitor added with the synergistic adjuvant of Example 1 of the present invention; Figure 2 It shows the differences in micro - nano structures on the stem, axillary buds and leaves; Figure 3Effect diagram of bud inhibition 15 days after pesticide application; among them: A: 15% plant polyphenol + 9% potassium fulvate + 1% defoamer + 75% C12-C14 mixed fatty alcohol, diluted 25 times; B: 75% C12-C14 mixed fatty alcohol, diluted 25 times; C: 15% plant polyphenol + 1% silicone defoamer + 75% C12-C14 mixed fatty alcohol, diluted 25 times; D: 9% added potassium fulvate + 1% silicone defoamer + 75% C12-C14 mixed fatty alcohol, diluted 25 times; E: 35% flumetralin EC, diluted 200 times; F: 33% butralin EC, diluted 200 times; G: Only topping without bud inhibition.

[0025] Figure 4 Effect diagram of bud inhibition 30 days after pesticide application; among them, H: 15% plant polyphenol + 9% potassium fulvate + 1% defoamer + 75% C12-C14 mixed fatty alcohol, diluted 25 times; I: 75% content of mixed fatty alcohol, diluted 25 times; J: 15% plant polyphenol + 1% silicone defoamer + 75% C12-C14 mixed fatty alcohol, diluted 25 times; K: 9% added potassium fulvate + 1% silicone defoamer + 75% C12-C14 mixed fatty alcohol, diluted 25 times; L: 35% flumetralin EC, diluted 200 times; M: 33% butralin EC, diluted 200 times; N: Only topping without bud inhibition.

[0026] Figure 5 Drug damage diagrams of flumetralin and butralin. Among them, Diagram O is the drug damage of flumetralin, and Diagram P is the drug damage of butralin. Detailed implementation manners

[0027] The following will specifically describe the present invention in combination with the detailed implementation manners and examples, and the advantages and various effects of the present invention will be presented more clearly therefrom. Those skilled in the art should understand that these detailed implementation manners and examples are used to illustrate the present invention, rather than limiting the present invention.

[0028] Throughout the specification, unless otherwise specifically stated, the terms used herein should be understood as having the meanings commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as the general understanding of those skilled in the art to which the present invention belongs. In case of contradiction, this specification shall prevail.

[0029] It should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "first", "second", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0030] In addition, in the description of this application, the meanings of "a plurality of" and "several" are two or more, unless otherwise clearly and specifically defined.

[0031] The plant polyphenols in the embodiments of the present invention were purchased from Xi'an Virgin Biotechnology Co., Ltd., with the product number virgin342; Potassium fulvate was purchased from Jinan Shengshi Chuangfu Chemical Co., Ltd., with the product number 158; The silicone defoamer was purchased from Guangdong Nanhui New Materials Co., Ltd., with the product number Cl-0560; The bud inhibitor C12-C14 mixed fatty alcohols were purchased from Shanghai Macklin Biochemical Co., Ltd., with the product number A913429.

[0032] The general idea of the technical solution of this application is as follows: According to a typical embodiment of the present invention, there is provided a synergistic adjuvant for improving the bud inhibition rate of a bud inhibitor on tobacco axillary buds. The synergistic adjuvant for improving the bud inhibition rate of a bud inhibitor on tobacco axillary buds, in parts by weight, comprises the following components: Plant polyphenols: 14-16 parts; Potassium fulvate: 8-10 parts; Silicone defoamer: 1 part.

[0033] The principle of the present invention is as follows: C12-C14 mixed fatty alcohols are a kind of biogenic mixed fatty alcohols composed of 8 to 10 carbon atoms, having the advantages of non-toxic, residue-free and fast-acting. The C12-C14 natural mixed fatty alcohol tobacco bud inhibitor has the characteristics of pollution-free, residue-free and does not change the chemical composition of tobacco, but when applied alone, the drug effect time is short, seriously affecting the quality and quality of tobacco.

[0034] The inventors of this application found that: Plant polyphenols, potassium fulvate and silicone defoamer as adjuvants can significantly improve the effect of the bud inhibitor when compounded with mixed fatty alcohols during use: (1) Plant polyphenols and potassium fulvate not only stabilize and enhance the activity of the bud inhibitor, reduce degradation loss, but also prolong the drug effect and enhance the plant stress resistance and physiological activity, improving the quality of tobacco leaves; (2) Plant polyphenols form a stable chelate with potassium ions, adhering to the leaves and increasing the retention amount of the liquid medicine; (3) The silicone defoamer is used to eliminate the bubbles in the liquid medicine.

[0035] Among the three parts of the main stem, axillary buds and petioles of the tobacco plant, the number of villi on the axillary buds is significantly more than the other two parts.

[0036] By adding an adjuvant, the wettability of the liquid medicine can be enhanced, enabling the liquid medicine to be more effectively retained in the axillary bud part with more villi, thereby significantly improving the inhibition effect of the bud inhibitor. This method can more precisely target the axillary buds for treatment and improve the bud inhibition effect.

[0037] (1) Average diameter of villi: axillary buds: about 10 mm to 15 mm; leaves: about 15 mm to 20 mm; stems: about 20 mm to 30 mm. (2) Villi density: axillary buds: about 200 to 800 villi per square millimeter; leaves: about 100 to 500 villi per square millimeter; stems: about 50 to 300 villi per square millimeter.

[0038] The synergistic adjuvant for improving the bud inhibition rate of the bud inhibitor on tobacco axillary buds and its preparation method and application are described in detail below in conjunction with the accompanying drawings.

[0039] Example 1 A synergistic adjuvant for increasing the bud inhibition rate of tobacco axillary buds 1. A synergistic adjuvant for improving the bud inhibition rate of a bud inhibitor on tobacco axillary buds, comprising the following components in parts by weight: Plant polyphenols: 15 parts by weight; Potassium fulvic acid: 9 parts by weight; Silicone defoamer: 1 part by weight.

[0040] 2. Application After the synergistic adjuvant is prepared, 75 parts by weight of C12-C14 mixed fat alcohol is added to obtain an aqueous emulsion; the aqueous emulsion is diluted 25 times and applied to the axillary buds of tobacco by a cup spraying method.

[0041] Example 2 1. A synergistic adjuvant for improving the bud inhibition rate of a bud inhibitor on tobacco axillary buds, comprising the following components in parts by weight: Plant polyphenols: 14 parts by weight; Potassium fulvic acid: 10 parts by weight; Silicone defoamer: 1 part by weight.

[0042] 2. Application After the synergistic adjuvant is prepared, 75 parts by weight of C12-C14 mixed fat alcohol is added to obtain an aqueous emulsion; the aqueous emulsion is diluted 25 times and applied to the axillary buds of tobacco by a cup spraying method.

[0043] Example 3 1. A synergistic adjuvant for improving the bud inhibition rate of a bud inhibitor on tobacco axillary buds, comprising the following components in parts by weight: Plant polyphenols: 16 parts by weight; Potassium fulvic acid: 8 parts by weight; Silicone defoamer: 1 part by weight.

[0044] 2. Application After the synergistic adjuvant is prepared, 75 parts by weight of C12-C14 mixed fat alcohol is added to obtain an aqueous emulsion; the aqueous emulsion is diluted 25 times and applied to the axillary buds of tobacco by a cup spraying method.

[0045] Comparative Example 1 In this comparative example, the content of C12-C14 mixed alcohol is 75 (w / w), and the balance is deionized water, which is diluted 25 times. That is, the synergistic auxiliary agent used to improve the bud inhibitor rate of tobacco axillary buds in Example 1 is not used, and the bud inhibitor C12-C14 mixed alcohol is directly used.

[0046] Comparative Example 2 In this comparative example, except that potassium humate is not added, other steps are the same as those of Example 1.

[0047] Comparative Example 3 In this comparative example, except that plant polyphenols are not added, other steps are the same as those of Example 1.

[0048] Comparative Example 4 The comparative ratio is the control drug 1:35% flumethalin emulsifiable concentrate, diluted 200 times.

[0049] Comparative Example 5 The comparative ratio is control agent 2: 33% butralin emulsifiable concentrate, diluted 200 times.

[0050] Comparative Example 6 This comparison ratio is the blank control group: only topping without bud suppression.

[0051] Experimental Example 1 1. Experimental Methods 1. Experimental design Experimental crops: Flue-cured tobacco variety, Yunyan 87.

[0052] Test time and location: June 12-July 12, 2024, at the Tobacco Research Institute of the Chinese Academy of Agricultural Sciences, Jimo District, Qingdao City, Shandong Province. The test site is loam with medium soil fertility.

[0053] Setting groups: including the above-mentioned Examples 1 to 3, and Comparative Examples 1 to 6; Each treatment was replicated 4 times, with 30 tobacco plants in each replicate, for a total of 36 plots, which were randomly arranged.

[0054] During the period from the elongation of tobacco buds to the beginning of flowering, artificial topping is performed and axillary buds of 2 cm or longer are removed. After the pesticide is diluted to a certain multiple, it is applied by cup spraying, with 20-30 mL of the solution being poured on each plant, allowing it to flow down along the main stem, ensuring that the solution covers each axillary bud. Axillary buds that are not covered need to be reapplied in time.

[0055] When using bud inhibitors, you should pay attention to the following: Use the drug within 24 hours after tobacco topping, and immediate application is best; avoid using it when the plants are too wet, the temperature is too high, or the wind speed is too high, so as not to affect the effect.

[0056] Meteorological conditions: average temperature is about 24 °C to 28 °C; average humidity is about 75% to 85%; average rainfall is about 80 mm to 100 mm.

[0057] Soil parameters: sand content is 40% to 60%; silt content is 30% to 50%; clay content is 10% to 20%; soil pH value is 6.0 to 7.5 (neutral to slightly acidic).

[0058] 2. Method for axillary bud suppression investigation: 15 days and 30 days after applying the medicine, select 3 points in each treatment plot, investigate 10 plants at each point, count the axillary buds with a length greater than 2 cm on each tobacco plant, and finally count the fresh weight of the axillary buds at the last time.

[0059] After the experiment ends, calculate the axillary bud suppression rate and axillary bud suppression effect according to the following formula: Axillary bud suppression rate (%) = (number of control buds - number of treated buds) / number of control buds × 100% (1) Axillary bud suppression effect (%) = (fresh weight of control buds - fresh weight of treated buds) / fresh weight of control buds × 100% (2) 3. Method for safety investigation: Visually investigate the growth of tobacco in each plot 1, 3, and 7 days after applying the medicine to check if it is normal. Specifically, observe whether there are any phytotoxicity symptoms such as necrotic spots, chlorosis, malformation, dead seedlings, and dwarfing on the tobacco.

[0060] III. Experimental results 1. Results after 1 - 7 days of applying the medicine 1 day and 2 days after applying the medicine, there is no phytotoxicity in Examples (1 - 9); 7 days after applying the medicine, there is still no phytotoxicity in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, Comparative Example 3, and Comparative Example 6. However, mild phytotoxicity appears in Comparative Example 4 (35% flumetralin EC) and Comparative Example 5 (33% butralin EC). This may be because flumetralin and butralin are systemic axillary bud suppressants. They do not enter the leaves in the initial stage of applying the medicine. As time goes by, their content in the leaves increases, thus causing phytotoxicity to the leaves.

[0061] 2. Results after 15 days of applying the medicine Table 1: Results of field axillary bud suppression test after 15 days Agent Average number of axillary buds (pcs) Average bud inhibition rate (%) Example 1 0.00 100.00 Example 2 0.00 100.00 Example 3 0.00 100.00 Comparative Example 1 2.00 62.26 Comparative Example 2 1.35 74.53 Comparative Example 3 1.23 76.79 Comparative Example 4 1.80 66.03 Comparative Example 5 2.20 58.49 Comparative Example 6 5.30 -- As can be seen from Table 1: In Examples 1 - 3, the axillary bud suppression rate is 100% after 15 days; In Comparative Example 1, without adding the synergistic adjuvant of the present invention, the axillary bud suppression rate is 62.26% after 15 days; In Comparative Example 2, without adding potassium fulvate, the axillary bud suppression rate is 74.536% after 15 days; In Comparative Example 3, no plant polyphenol was added, and the bud inhibition rate was 76.79% after 15 days; In Comparative Examples 4 - 5, they were control agents in the prior art, and the bud inhibition rate was 58.49% - 66.03% after 15 days.

[0062] From a comparison between Comparative Examples 2 - 3 and Example 1, it can be seen that after adding both plant polyphenol and potassium fulvate, a synergistic effect is produced, and the compounding with C12 - C14 mixed fatty alcohols can significantly improve the effect of the bud inhibitor.

[0063] 3. Results after 30 days of applying the drug Table 2: Results of the field bud inhibition test after 30 days Agent Average number of axillary buds (pcs) Average fresh weight of axillary buds (g) Average bud inhibition rate (%) Bud inhibition effect (%) Example 1 0.10 2.10 98.33 97.01 Example 2 0.12 2.50 98.01 96.96 Example 3 0.20 3.00 97.89 96.85 Comparative Example 1 3.40 40.12 43.00 42.87 Comparative Example 2 1.86 20.36 69.00 71.01 Comparative Example 3 1.96 26.32 67.33 62.52 Comparative Example 4 2.36 30.20 60.67 57.00 Comparative Example 5 2.86 38.00 52.33 46.00 Comparative Example 6 6.00 70.23 -- -- The test results in the above table show that: In Examples 1 - 3, the bud inhibition effect reached 96.85 - 97.01% after 30 days.

[0064] In Comparative Example 1, without adding the synergistic adjuvant of the present invention, the bud inhibition effect was only 42.87% after 30 days.

[0065] In Examples 1, 2 and 3, the C12 - C14 bud inhibition effect with the added synergistic adjuvant was significantly better than that of Comparative Example 1 (using C12 - C14 mixed fatty alcohols alone), Comparative Example 2 (without adding potassium fulvate), Comparative Example 3 (without adding plant polyphenol), Comparative Example 4 (35% flumetralin EC), Comparative Example 5 (33% butralin EC) and Comparative Example 6 (only topping without bud inhibition); Moreover, in Examples 1, 2 and 3, both plant polyphenol and potassium fulvate were added, and the bud inhibition effect was good.

[0066] In summary, it can be seen that the present invention has an obvious effect on tobacco bud inhibition, with an average bud inhibition rate of over 97%, and the average fresh weight bud inhibition effect can reach over 96%. Through the comparison of the bud inhibition effect, the tobacco bud inhibitor composition of the present invention has a better bud inhibition effect than the currently widely used 35% flumetralin EC and 33% butralin EC.

[0067] Considering the bud inhibition effect and the dosage cost comprehensively, the C12 - C14 bud inhibitor with the added synergistic adjuvant is more suitable for promotion.

[0068] Finally, it should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non - exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0069] Although the preferred embodiments of the present invention have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art can make various changes and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A synergistic adjuvant for improving the bud inhibition rate of a bud inhibitor on tobacco axillary buds, characterized in that: The synergistic auxiliary agent for improving the bud inhibition rate of the bud inhibitor on tobacco axillary buds comprises the following components in parts by weight: Plant polyphenols: 14-16 parts; Potassium fulvic acid: 8-10 parts; Silicone defoamer: 1 part.

2. A synergistic adjuvant for improving the bud inhibition rate of a bud inhibitor on tobacco axillary buds according to claim 1, characterized in that: The sprout inhibitor is a C12-C14 mixed alcohol solvent.

3. A synergistic adjuvant for improving the bud inhibition rate of a bud inhibitor on tobacco axillary buds according to claim 1, characterized in that: The mass ratio of the sprout inhibitor to the synergistic adjuvant is (73-77): (23-27).

4. A method for preparing a synergistic auxiliary agent for improving the bud inhibition rate of a bud inhibitor on tobacco axillary buds according to any one of claims 1 to 3, characterized in that: The method comprises: Mix the plant polyphenols, potassium humate and silicone defoamer evenly, and stir until dissolved.

5. Use of the synergistic aid according to any one of claims 1 to 3 in improving the sprout inhibition rate of a sprout inhibitor on tobacco axillary buds.

6. The use according to claim 5, characterized in that: The synergistic auxiliary agent realizes directional bud inhibition by enhancing the wettability of axillary bud villi, thereby improving the bud inhibition rate of the bud inhibitor on tobacco axillary buds.

7. A method for increasing the bud inhibition rate of a bud inhibitor on tobacco axillary buds, characterized in that: The method comprises: The synergistic adjuvant for improving the sprout inhibition rate of the sprout inhibitor on tobacco axillary buds according to any one of claims 1 to 3 is mixed with the sprout inhibitor, and stirred to dissolve to obtain an aqueous emulsion; The aqueous emulsion is diluted and then applied to the axillary buds of tobacco by cup spraying.

8. A method for improving the bud inhibition rate of tobacco axillary buds by a bud inhibitor according to claim 7, characterized in that: The application time is: within 24 hours after topping, 20-30 mL of the liquid is sprinkled on each plant.

9. A method for improving the bud inhibition rate of tobacco axillary buds by a bud inhibitor according to claim 7, characterized in that: The dilution multiple is 25-30 times.

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